# Accident 20080226836369A: Beech A36, Colbert, GA, February 26, 2008

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: February 26, 2008, 16:22 local time
- Place: Colbert, GA
- Damage: Substantial damage
- Phase of flight: Normal Cruise
- Operating rules: General operating rules (Part 91)
- Location: 33.9931° N, 83.1833° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=33.9931&lon=-83.1833&mi=10
- Aircraft: N623CQ, a cancelled registration (https://openairdocs.org/deregistered/N623CQ-2009-03-12) (OpenAirDocs)
- Registry model: Beech A36 (registry code 1151604, https://openairdocs.org/model/beech-a36) (OpenAirDocs)
- Registry engine: Continental IO-520 series (registry code 17032, https://openairdocs.org/engine/continental-io-520-series) (OpenAirDocs)
- Reported make and model: BEECH A36
- Reported engine: CONT IO550B
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 420 total, 0 in this make and model, 0 in the last 90 days
- NTSB investigation: [NTSB NYC08LA112](https://openairdocs.org/ntsb/NYC08LA112) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20080226836369A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) PROPELLER TEAR DOWN ANALYSIS REVEALED THAT THE REAR BUSHING, THROUGH WHICH THE PROPELLER PITCH CONTROL ROD PASSED, WHICH IS PART OF A REAR HUB ASSEMBLY REPAIR, WAS DISLODGED AND CONTAINED WITHIN THE REAR OF THE HUB. THE ADHESIVE THAT WAS PLACED ON THE REAR BUSHING TO HELP HOLD IT IN PLACE IN THE HUB ASSEMBLY WAS FOUND TO HAVE NOT ADHERED TO THE OUTSIDE DIAMETER OF THE BUSHING. ALSO FOUND DURING THE TEAR DOWN ANALYSIS WAS THAT THE PROPELLER PITCH CONTROL ROD WAS LOOSE AND APPEARED TO HAVE NOT BEEN PROPERLY TORQUED TO THE 40 PSI REQUIRED. IT IS DETERMINED THAT THE DISLODGED BUSHING AND IMPROPERLY TORQUED PROPELLER PITCH CONTROL ROD WERE CASUAL IN THE PILOT'S EVENTUALLY LOSING CONTROL OF PROPELLER RPM. AND USTIMATELY, THE LOSS OF THRUST WHEN THE PROPELLER DECREASED BELOW THE DESIGNED 12 DEGREES PITCH STOP WHERE IT SHOULD HAVE NORMALLY REMAINED WHEN ALL THE OIL WAS LOST INT THE FRONT PORTION OF THE PROPELLER HUB ASSEMBLY. THIS IS SUPPORTED BY BOTH PILOT'S STATEMENTS THAT THE PROPELLER RPM WENT TO THE MAX READING ON THE ENGINE TACHOMETER EVEN WITH THE SLIGHTEST APPLICATION OF THROTTLE INDICATING NO PROPELLER LOAD AS SOME WOULD HAVE BEEN EVIDENT HAD THE BLADE STOPPED AT THE LOW PITCH STOP OF 12 DEGREES.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB NYC08LA112](https://openairdocs.org/ntsb/NYC08LA112), Feb 26, 2008: Beech A36 (N623CQ), Athens, GA, substantial damage. Probable cause: The loss of propeller thrust due to the unseating of an internal propeller hub bushing. Contributing to the accident was the manufacturer's inadequate procedure to secure the bushing.

## Other reports on N623CQ (1)

Matched to the same aircraft by N-number and date.

- [Incident 19800823080969I](https://openairdocs.org/incident/19800823080969I), Aug 23, 1980: Beech A36 (N623CQ), Chatham, MA, Minor damage. Electrical system failure due to corroded battery lead. Pilot did not use emergency procedure to extend gear.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.